基于非线性弹性地基梁的地下矿山充填开采覆岩移动规律研究
何祥锐,邱贤阳,史秀志,李小元,支伟,刘军,王远来

Study on the Movement Law of Overlying Strata in Underground Mining with Nonlinear Elastic Foundation Beam
Xiangrui HE,Xianyang QIU,Xiuzhi SHI,Xiaoyuan LI,Wei ZHI,Jun LIU,Yuanlai WANG
表2 矿岩及充填体物理力学参数
Table 2 Physical and mechanical parameters of rock and backfill material
岩性容重/(kg·m-3弹性模量/GPa泊松比内摩擦角/(°)黏聚力/MPa抗拉强度/MPa体积模量/GPa剪切模量/GPa
矿体3 430300.24324.243.519.212.1
上盘围岩2 680320.23345.123.719.813.0
下盘围岩2 700350.23334.804.521.614.2
充填体(1∶4)1 9800.05730.18441.50.2820.450.03020.0242
充填体(1∶8)1 8900.02310.19638.70.1710.170.01270.0097
充填体(1∶10)1 8300.01410.21536.90.1430.10.00820.0058
充填体(1∶12)1 7200.00970.22733.20.1050.020.00590.0040